gilsonite increase softening point and performance of road

gilsonite increase softening point and performance of road

Gilsonite asphalt grade is natural occurring hydrocarbon substances characterized by a high softening point (above 110° C) in the class known as asphaltite. They are mined much like other minerals and sold essentially in their native state. They are fully compatible with asphalt and have long been known as asphalt hardeners and reinforcing agents. Gilsonite applicable in asphalt is currently sold all over the world as an asphalt modifier in the form of a dry bulk solid granular powder.

Gilsonite increase performance of asphalt

Gilsonite powder benefits to asphalt pavements include increased stability, resistance to deformations problems such as rutting and shoving, resistance to water striping and increased load bearing ability. Gilsonite functions by making the pavements harder, stronger and increases asphalt’s adhesion to aggregates.
It is generally regarded that Gilsonite reduces pavements’ low temperature properties making them susceptible to thermal cracking. Gilsonite melted into hot asphalt will reduce penetration and increase viscosity of the asphalt binder. Gilsonite may also be mixed with aggregate prior to combining with the asphalt binder.

Gilsonite decrease thickness of asphalt

Gilsonite modified asphalt pavements have been particularly successfully in highly stressed traffic areas. Gilsonite, as the majority constituent, has been combined with virgin polymers such as styrene – butadiene – styrene (SBS) and Ethyl Vinyl Acetate (EVA). Gilsonite modified asphalt binders generally do not increase asphalt binder content requirement in pavement mixtures.
Performance grading of asphalt binders and pavement mixtures became a reality with the conclusion of the, “FHWA” 50 million dollar, Strategic Highway Research Program, “SHRP”, in March of 1993. “SHRP” developed new asphalt binder specifications and test criteria based on the engineering properties related to pavement performance.

Gilsonite prevent to grow greens in asphalt

The new emphasis is on low temperature performance of aged binder materials. Low temperature flexibility of aged asphalt binders became significant. Performance Grade “PG,” asphalt is based on the predicted temperature performance both high and low of asphalt binders. Neither Gilsonite nor post vulcanized crumb rubber have performed well under “SHRP” evaluations. “SHRP” specifications will cause increased demand for modified asphalt as state departments of transportation adopt the “PG” specifications.

 

Related Products

Gilsonite support cementing of oil well

Gilsonite support cementing of oil well

A cement produced by Gilsonite is suitable for blocking or plugging an abandoned pipeline or back filling a mine shaft, tunnel or excavations contains Portland cement or a mixture of at least two components selected from Portland cement, A cementitious slurry, formulated from the cement mix, may have a density less than or equal to 1500 kg/m3, and exhibits good compressive strength. In the formulation of the cementing composition of the invention, it is preferable to employ [...]

Gilsonite drilling fluid loss controller additive

Gilsonite drilling fluid loss controller additive

The invention relates to a composition comprising an drilling Gilsonite HPHT fluid loss control aid, stable at elevated temperatures and which also acts as an excellent shale stabilizer, bore hold lubricant, sealant for depleted sand, and wall cake conditioner. The HPHT gilsonite fluid loss control aid broadly comprises a Gilsonite (asphaltite, asfaltit,Gilsonita,uintaite, natural asphalt, natural bitumen) which also contains a surfactant such as a nonionic surfactant. The HPHT fluid loss [...]

Gilsonite construction grade in asphalt and pavement

Gilsonite construction grade in asphalt and pavement

Gilsonite has been the subject of exhaustive study to improve characteristics for use in paving. Various properties of asphalt are manipulated to produce a product that has the appropriate wear properties, rut resistance, fatigue and low temperature cracking resistance, adhesion strength, viscosity and pour point. Rut resistance is resistance to longitudinal surface depressions in the wheel paths. Adhesion strength is the maximum adhesion strength of the joint sealant and the joint reservoir, including but not [...]

Gilsonite ink grade

Gilsonite ink grade

ATDM Gilsonite Ink grade is a quick drying high gloss and corrosion resistant asphalt enamel. It is using for fully resistance to water, acids, alkalis, electrolysis and natural elements.Gilsonite ink powder is readily soluble without heating in aromatic solvents (Benzene, Toluene, Xylene) and in most chlorinated solvents. It is also soluble without heating in aliphatic and low aromatic solvents (VMP and other Naphtha, Ink Oils and Mineral Spirits), but mixing time is longer. Without heating, the pulverized [...]

Gilsonite paint and coat grade

Gilsonite paint and coat grade

Maximum water and weather resistance is obtained by using a paint containing gilsonite coat and the gas-proofed tung or oiticica (or mixtures of the two) oil without the addition of any other drying oil, but it is found that while this combination is commercially usable, it is difficult to brush, and it is preferred to add a viscosity reducing drying oil. For this purpose it is found that perilla oil is particularly satisfactory. Other drying oils such as linseed, soya bean, sunflower seed, hemp seed, menhaden, or [...]

Gilsonite foundry grade

Gilsonite foundry grade

Gilsonite foundry sand help:1. Reduce imperfections due to the rapid reaction between the silica sand mold and the oxidized surface of molten iron.2. Improve sand peel from casting at shakeout.3.Produce smoother, cleaner casting surface.4. Minimise imperfections, casting losses, scrap.Foundry gilsonite additivesDuring pouring, the gases given off from the gilsonite which is carbonaceous additives form a gaseous film which prevents the molten metal from making direct contact with the clay-coated [...]